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Financial Information by Segment (Detail) (USD $) In Thousands, unless otherwise specified | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2014 | Jun. 30, 2013 | Jun. 30, 2014 | Jun. 30, 2013
Segment Reporting Information [Line Items] |  |  |  |
Interest income | $ 57,993 | $ 57,719 | $ 113,469 | $ 111,243
Interest expense | (21,151) | (21,416) | (40,211) | (39,718)
Net interest income (loss) | 36,842 | 36,303 | 73,258 | 71,525
(Reversal of provision) provision for loan losses | 315 | 3,272 | (967) | 1,233
Mortgage banking activities, net | 6,310 | 48,723 | 6,079 | 94,260
MSR income (loss), net | (1,777) | 10,547 | (1,171) | 11,568
Other market valuation adjustments, net | (4,121) | (6,258) | (10,260) | (6,561)
Realized gains, net | 1,063 | 556 | 2,155 | 12,823
Operating expenses | (22,282) | (24,430) | (42,254) | (44,616)
(Provision for) benefit from income taxes | (333) | (3,140) | 1,510 | (14,049)
Net Income | 16,017 | 65,573 | 28,350 | 126,183
Non-cash amortization income (expense) | 8,262 | 5,745 | 17,338 | 11,735
Operating Segments | Residential Mortgage Banking |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Interest income | 12,438 | 15,158 | 23,104 | 24,914
Interest expense | (2,161) | (3,020) | (3,482) | (5,130)
Net interest income (loss) | 10,277 | 12,138 | 19,622 | 19,784
Mortgage banking activities, net | 1,329 | 42,290 | 265 | 81,514
Other market valuation adjustments, net | 13 | 38 | 11 | 78
Operating expenses | (9,501) | (6,053) | (16,595) | (10,691)
(Provision for) benefit from income taxes | 259 | (2,409) | 94 | (11,314)
Segment Contribution | 2,377 | 46,004 | 3,397 | 79,371
Non-cash amortization income (expense) | (36) | (13) | (88) | (119)
Operating Segments | Residential Investments |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Interest income | 27,924 | 24,015 | 55,519 | 47,533
Interest expense | (3,116) | (2,553) | (5,966) | (5,219)
Net interest income (loss) | 24,808 | 21,462 | 49,553 | 42,314
MSR income (loss), net | (1,777) | 10,547 | (1,171) | 11,568
Other market valuation adjustments, net | (3,788) | (5,738) | (9,746) | (6,308)
Realized gains, net | 992 | 526 | 1,979 | 12,564
Operating expenses | (770) | (1,956) | (1,865) | (3,539)
(Provision for) benefit from income taxes | 149 | (1,236) | 1,676 | (1,661)
Segment Contribution | 19,614 | 23,605 | 40,426 | 54,938
Non-cash amortization income (expense) | 10,586 | 8,066 | 21,833 | 15,646
Operating Segments | Commercial Mortgage Banking and Investments |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Interest income | 11,217 | 9,623 | 21,601 | 19,794
Interest expense | (4,404) | (2,560) | (7,708) | (5,368)
Net interest income (loss) | 6,813 | 7,063 | 13,893 | 14,426
(Reversal of provision) provision for loan losses | (289) | (891) | (944) | (1,576)
Mortgage banking activities, net | 4,981 | 6,433 | 5,814 | 12,746
Realized gains, net |  |  |  | 210
Operating expenses | (2,180) | (2,654) | (4,806) | (5,850)
(Provision for) benefit from income taxes | (750) | (495) | (395) | (1,718)
Segment Contribution | 8,575 | 9,456 | 13,562 | 18,238
Non-cash amortization income (expense) | (215) | (224) | (388) | (411)
Corporate/Other |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Interest income | 6,414 | 8,923 | 13,245 | 19,002
Interest expense | (11,470) | (13,283) | (23,055) | (24,001)
Net interest income (loss) | (5,056) | (4,360) | (9,810) | (4,999)
(Reversal of provision) provision for loan losses | 604 | 4,163 | (23) | 2,809
Mortgage banking activities, net |  |  |  |
MSR income (loss), net |  |  |  |
Other market valuation adjustments, net | (346) | (558) | (525) | (331)
Realized gains, net | 71 | 30 | 176 | 49
Operating expenses | (9,831) | (13,767) | (18,988) | (24,536)
(Provision for) benefit from income taxes | 9 | 1,000 | 135 | 644
Segment Contribution | (14,549) | (13,492) | (29,035) | (26,364)
Net Income | (14,549) | (13,492) | (29,035) | (26,364)
Non-cash amortization income (expense) | $ (2,073) | $ (2,084) | $ (4,019) | $ (3,381)

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- Definition The aggregate net change in market value for certain assets and liabilities that was included in earnings for the period. This includes changes in market values for assets and liabilities accounted for at fair value and impairments on loans held-for-sale and real estate owned. This excludes valuation adjustments recorded in Mortgage Banking Activities, Net. + References No definition available. + Details
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- Definition Represents the total of interest and dividend income, including any amortization and accretion (as applicable) of discounts and premiums, earned from (1) loans and leases whether held-for-sale or held-in-portfolio; (2) investment securities; (3) federal funds sold; (4) securities purchased under agreements to resell; (5) investments in banker's acceptances, commercial paper, or certificates of deposit; (6) dividend income; or (7) other investments not otherwise specified herein. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 225 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-04.1-5) -URI http://asc.fasb.org/extlink&oid=6879574&loc=d3e536633-122882 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 04 -Paragraph 1, 2 , 3, 4, 5 -Article 9 + Details
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- Definition Amount of the cost of borrowed funds accounted for as interest expense. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6450988&loc=d3e26243-108391 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 225 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-04.9) -URI http://asc.fasb.org/extlink&oid=6879574&loc=d3e536633-122882 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 04 -Paragraph 9 -Article 9 + Details
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- Definition Amount of expense related loan transactions, lease transactions, credit loss from transactions other than loan and lease transactions, and other loss based on assessment of uncollectability from the counterparty to reduce the account to their net realizable value. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3602-108585 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 04 -Paragraph 11 -Article 9 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 11B -Subparagraph (c)(2) -URI http://asc.fasb.org/extlink&oid=28368275&loc=SL6953423-111524 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 225 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-04.11) -URI http://asc.fasb.org/extlink&oid=6879574&loc=d3e536633-122882 + Details
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